Work, Energy and Power MCQ question and answer with solution

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Each section contains 100 MCQs on Work, Energy and Power .

An example of pulling is-

A) Hoisting the flag B) Opening the door C) Lifting the curtain D) Pushing the boy

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

If a person pulls the trolley up to the distance of 10 m with the force of 50 N, what will be the work done by him?

A) 5J B) 500J C) 20J D) 0.2J

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In which of the following situations is the work done by negative force?

A) When an object moves in a direction perpendicular to the direction of force B) When the object moves at an angle in the direction of force C) When an object moves in the opposite direction of force D) When an object moves in the direction of force

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

An object has a potential energy of 400J with a mass of 20kg and a gravity of 10 m/s², what is the height of that object?

A) 0.5m B) 4m C) 1m D) 2m

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Potential energy is equal to-

A) m(-g)h B) mgh C) Fs D) $$\frac{1}{2}m{v^2}$$

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Energy conservation means

A) Generation and destruction of energy B) Energy could be created C) Energy could not be created but destroyed D) Energy can neither be created nor destroyed

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

An object of mass 50 kg is moving at a fixed velocity of 6 ms^-1. Calculate the momentum of the object.

A) 300 kg ms^-2 B) 300 kg ms^-1 C) 30 kg ms^-1 D) 30 kg ms^-2

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

If a stationary force applied to an object, the object moved in the direction of force, is expressed as a result of force and displacement, it is called_

A) Retardment B) Work done C) Impulse D) Acceleration

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following can not be created nor be destroyed?

A) Power B) Velocity C) Energy D) Force

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

100

What is the mass of a unit volume of substance called?

A) Density B) Pressure C) Buoyancy D) Force

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Work, Energy and Power MCQ question and answer with solution | Physics Gk MCQs